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Debt - Narrative (Details) - USD ($) |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 27, 2021 | Oct. 18, 2021 | Apr. 05, 2021 | Jul. 15, 2020 | Apr. 10, 2020 | Mar. 20, 2020 | Mar. 31, 2021 | Jul. 31, 2020 | Mar. 31, 2020 | Oct. 31, 2019 | Apr. 30, 2019 | Mar. 31, 2021 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Feb. 28, 2022 | Feb. 28, 2021 | Apr. 09, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2012
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of debt |  |  |  |  |  |  |  |  |  |  |  | $ 11,507,000 |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,952,000 | $ 2,158,000 |  |  |  |  |  |
Payments of convertible debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 26,243,000 | 8,418,000 |  |  |  |  |  |
Total debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,220,000 | $ 10,071,000 |  |  |  |  |  |
Class of warrant or right, outstanding (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,636,801 | 5,996,112 |  |  |  |  |  |
Warrant liability |  |  |  | $ 2,486,000 |  |  |  |  |  |  |  |  |  |  | $ 3,605,000 | $ 1,614,000 |  |  |  | $ 0 |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock upon partial conversions of Senior Convertible Note (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 1,763,675 |  |  | 1,764,000 |  |  |  |  |  |
Contributions for Notes Payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction, amount of transaction |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 560,000 |  |  |  |  |  |  |  |
Related party transaction rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |
Cane Capital, LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of note |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 195,000 |  |  |  |  |  |
Cane Capital, LLC | Contributions for Notes Payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction, amount of transaction |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 204,000 |  |  |  |  |  |  |  |
Curo Capital Appreciation Fund, LLC | Contributions for Notes Payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction, amount of transaction |  |  |  |  |  |  |  |  |  |  |  |  |  | 151,000 |  |  |  |  |  |  |  |
Individuals Associated With Chief Executive Officer | Contributions for Notes Payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction, amount of transaction |  |  |  |  |  |  |  |  |  |  |  |  |  | 155,000 |  |  |  |  |  |  |  |
Chief Technology Officer | Contributions for Notes Payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction, amount of transaction |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000 |  |  |  |  |  |  |  |
Warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant, term |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, outstanding (in shares) |  |  |  | 2,160,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,840,000 |  |  |  |
Exercise price per share (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9.22 | $ 5.54
Warrants | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional warrant shares (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 250.00% |  |  |  |  |
Warrants | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price per share (in dollars per share) |  |  |  | $ 4.00 |  |  |  |  |  |  |  |  |  |  | $ 2.25 |  |  | $ 2.25 |  |  |  |
Convertible notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  | $ 1,751,000 |  |  |  | $ 1,751,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate, restricted principal (as a percent) |  |  |  | 3.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent placement optional redemption, maximum net proceeds from placement (as a percent) |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of debt |  |  |  |  |  | $ 2,084,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  |  | $ 734,000 |  |  |  | 5,717,000 |  |  |  | 1,343,000 |  |  |  |  |  |
Participation rights period |  |  |  | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum amount of securities sold in equity offerings (as a percent) |  |  |  | 30.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (as a percent) |  |  |  | 7.00% |  |  |  |  |  |  | 7.00% |  |  |  |  |  |  |  |  |  |  |
Value of notes |  |  |  |  |  |  |  |  |  |  | $ 20,000,000 |  |  |  |  |  |  |  |  |  |  |
Conversion price (in dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 11.50 |  |  |  |  |  |  |  |  |  |  |
Extinguishment of debt, amount | $ 222,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible notes | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value of notes |  |  |  |  |  |  |  |  |  |  | $ 20,000,000 |  |  |  |  |  |  |  |  |  |  |
Notes Payable to Banks |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan proceeds |  |  |  |  | $ 2,850,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.98% |  |  |
Senior Convertible Note |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of note |  |  |  |  |  |  |  |  | $ 3,000,000 |  |  |  |  | 3,000,000 |  |  |  |  |  |  |  |
Original issue discount |  |  |  |  |  |  |  |  | 240,000 |  |  |  |  | $ 240,000 |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  |  |  |  |  | $ 2,760,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  |  |  |  | $ 81,000 |  |  |  |  |  |  |  |  |
Maximum amount of securities sold in equity offerings (as a percent) |  |  |  | 30.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (as a percent) |  |  |  |  |  |  |  |  | 7.00% |  |  |  |  | 7.00% |  |  |  |  |  |  |  |
Proceeds from debt, net of issuance costs |  |  |  |  |  |  |  |  | $ 2,371,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Principal repayment |  |  |  |  |  |  |  |  | $ 143,000 |  |  |  |  | $ 143,000 |  |  |  |  |  |  |  |
Percent of installment amount |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  | 100.00% |  |  |  |  |  |  |  |
Percent of installment at election of company |  |  |  |  |  |  |  |  | 105.00% |  |  |  |  | 105.00% |  |  |  |  |  |  |  |
Installment conversion, lowest volume weighted average price (as a percent) |  |  |  |  |  |  |  |  | 85.00% |  |  |  |  | 85.00% |  |  |  |  |  |  |  |
Subsequent placement optional redemption, redemption price (as a percent) |  |  |  |  |  |  |  | 110.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Promissory Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (as a percent) |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |
Value of notes |  |  |  |  |  |  |  |  |  | $ 20,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Period to maintain minimum balance of interest payments |  |  |  |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |
Principal and unpaid accrued interest due and payable, period |  |  |  |  |  |  |  |  |  | 60 months |  |  |  |  |  |  |  |  |  |  |  |
Repayments of notes payable | $ 905,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Promissory Notes | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value of notes |  |  |  |  |  |  |  |  |  | $ 20,000,000 |  |  |  |  |  |  |  |  |  |  |  |
2021 Promissory Note | Note payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of note |  | $ 5,220,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original issue discount |  | 200,000 |  |  |  |  |  |  |  |  |  |  |  |  | $ 316,000 | 0 |  |  |  |  |  |
Other issuance costs |  | 280,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  | 4,740,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Monthly amortization payments |  | $ 574,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment premium (as a percent) |  | 110.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective interest rate (as a percent) |  | 18.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,220,000 | 0 |  |  |  |  |  |
Series A Note | Note payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 2,481,000 |  |  |  |  |  |
Series A Note | Convertible notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of note |  |  |  | $ 4,320,000 |  |  |  | $ 4,320,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original issue discount |  |  |  | 320,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series B Note | Note payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 3,585,000 |  |  |  |  |  |
Series B Note | Convertible notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of note |  |  |  | 17,280,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original issue discount |  |  |  | 1,280,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  | $ 2,184,000 |  |  |  |  |  |  |  |  |  |  |  | $ 51,000 |  |  |  |  |  |  |
Payments of convertible debt |  |  | 13,902,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total debt |  |  | $ 11,718,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investor Note | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of note |  |  |  | $ 16,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mandatory prepayment amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |  |  |
Unrestricted principal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,750,000 |  |  |  |  |  |
Restricted principal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,070,000 |  |  |  |  |  |
Voluntary prepayment amount |  |  |  |  |  |  | $ 10,250,000 |  |  |  |  |  |  |  |  | 4,750,000 |  |  |  |  |  |
Proceeds from voluntary prepayment amount |  |  |  |  |  |  | 10,250,000 |  |  |  |  |  |  |  |  | 5,750,000 |  |  |  |  |  |
Unrestricted original issue discount |  |  |  |  |  |  | $ 820,000 |  |  |  |  | $ 820,000 |  |  |  | $ 460,000 |  |  |  |  |  |

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